1425647 has 8 divisors (see below), whose sum is σ = 1493856. Its totient is φ = 1359072.

The previous prime is 1425629. The next prime is 1425649. The reversal of 1425647 is 7465241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1425647 - 2⁶ = 1425583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1425649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1598 + ... + 2324.

It is an arithmetic number, because the mean of its divisors is an integer number (186732).

2^1425647 is an apocalyptic number.

1425647 is a deficient number, since it is larger than the sum of its proper divisors (68209).

1425647 is an equidigital number, since it uses as much as digits as its factorization.

1425647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817.

The product of its digits is 6720, while the sum is 29.

The square root of 1425647 is about 1194.0046063563. The cubic root of 1425647 is about 112.5478841426.

The spelling of 1425647 in words is "one million, four hundred twenty-five thousand, six hundred forty-seven".